Structure of PDB 7ase Chain a Binding Site BS01

Receptor Information
>7ase Chain a (length=70) Species: 5693 (Trypanosoma cruzi) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ALQNAVVFDKETMDKLLSEVPKYKVITPSIISDRLKISVALAAKGLQHLC
RQKLIKLVSCSSKFRLYSRV
Ligand information
>7ase Chain 0 (length=2150) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
gaucugguugauucugccaguagucauaugcuuguuucaaggacuuagcc
augcaugccucagaaucacugcauugcaggaaucugcgcauggcucauua
caucagacguaaucugccgcaaaaaucuugcggucuccgcaacauuggau
aacuuggcgaaacgccaagcuaauacaugaaccaaccggauguucucugu
uccggcggcagggcaaccugcugccaugggacguccagcgaaugaaugaa
aguaaaaccaaugccuucaccggcaguaacacucagaaguguugauucaa
uucauuccgugcgaaagccggguuuuuuuauccggcgucuuuugacgaac
aacugcccuaucagccagcgauggccguguaguggacugccauggcguug
acgggagcgggggauuaggguucgauuccggagagggagccugagaaaua
gcuaccacuucuacggagggcagcaggcgcgcaaauugcccaaugucaaa
aaaaaaagaugaggcagcgaaaagaaauagagccgacagugcuuuugcau
ugucguuuucaaugggggauauuuaaacccauccaaaaucgaguaacaau
uggaggacaagucuggugccagcacccgcgguaauuccagcuccaaaagc
guauauuaaugcuguugcuguuaaaggguucguaguugaauugagggccu
cuaaggcgcaaugguuuagucccauccacuucggauuggugacccaugcc
cuugugguccgugaacagacauucagaaacaaaaaacacgggagugguac
cuuuccugauuaucgcaugucaugcaugccagagggcgcccgugauuuuu
uacugugacuaaaaaagugugaccaaagcagucauucgacuugaauuaga
aagcaugggauaacaaaggagcagccucugggccaccguuucggcuuuug
uugguuuuaaaaguccauuggagauuauggggcagugugacaagcggcug
ggugcacucgucgccuuugcaacucacggcauccaggaaugaaggagggu
aguucgggggagaacguacuggugcgucagaggugaaauucuuagaccgc
accaagacgaacuacagcgaaggcauucuucaaggauaccuuccucaauc
aagaaccaaaguguggggaucgaagaugauuagagaccauuguaguccac
acugcaaacgaugacacccaugaauuggggaguuuuuggucguaggcgug
gucgggcuugauuauuauuuuucaucccguuccucgucucgccaaugaau
auuaaauuuacgugcauauucuuuuuggucuucguuuuuuuacggcgagg
gccuuuaacgggaauauccucagcacguuaucugacuucuucacgcgaaa
gcuuugagguuacagucucaggggggaguacguucgcaagagugaaacuu
aaagaaauugacggaauggcaccacaagacguggagcgugcgguuuaauu
ugacucaacacggggaacuuuaccagauccggacagggugaggauugaca
gauugaguguucuuucucgauccccugaaugguggugcauggccgcuuuu
ggucgguggagugauuuguuugguugauuccgucaacggacgagauccaa
gcugcccaguaggauucagaauugcccccuuccgcggguuuuacccaagg
gggggcgguauucgcuuguauccuucucugcgggauuccuuguuuugcgc
aaggugagauuuugggcaacagcaggucugugaugcuccucaauguucug
ggcgacacgcgcacuacaaugucagugagaacaagaaaaacgacucuugu
cggaccuacuugaucaaaagagugggaaaaccccggaaucacguagaccc
acuugggaccgaguauugcaauuauuggucgcgcaacgaggaaugucucg
uaggcgcagcucaucaaacugugccgauuacgucccugccauuuguacac
accgcccgucguuguuuccgaugauggugcaauacaggugaucggacagu
cgagugcuucacuugaccgaaaguucaccgauauuucuucaauagaggaa
gcaaaagucguaacaagguagcuguaggugaaccugcagcuggaucauuu
...<<<<<...{{{{>>>>>{{{{.[[[[[[...[[[..........[[[
.[[[..<<....<<....<<<<...>>>>...>>.>>......{{.....
...[[[..[[..[[...[[.[[.....<<<<<<...>>>>>>...<<...
..<<<<<<.....>>>>>>......>>..........<<<<<.<<<....
...<<<<<<<<<....>>>>>>>>>...>>>>>>>>.[[((((((((...
...<<<<<<<<<<<<......>>>.........................)
)))))))...]]....<<<<<<........>>>>>>...]].]]..]]]]
..]]].<<<....<<<....<<<<<.<<.......>>.>>>>>>>>....
..>>>..<<<<<<<<....>>>>...>>>>.}}.<<.<<<..........
>>>.>>.<<<<....>>>>...]]]]]].........<<<....<<<...
.......>>>..>>>.......]]]....<<<.<<<<<<<<<....>>>>
>>>>>..>>>.....<<<<............>>>.....>.........<
<<<<((....<.<<<<.....<<..))>>.......>>>>>>>>>>..]]
]]]]}}}}.........{{{{{.....[[[[...[[[.......<<<<<.
<.<<<<.<<<..<<............................>>..>>>>
>>>>.>>>>>..........................<<<<<<..<....<
<<<.<.........<<<<.......>>>>..>>>>>.>>>>>>>.....<
<<<<<<<.......<<...<.......>..<<<....>>>.....>>...
...>>>>>..>>>...........[[..(((((..<<<...>>>.((..>
>>>>>>>>))..)))))..]].......<<<<<...<<<....<<<<<..
<<<..>>>.>>>>>..<<<>>>..>>>.>>.>>>............<<<<
<..<<...<<<<<<<<..<<<<<<<<...<<<......>>>......>>>
>>>>.>.>>.......<<....>>.>>>>>>..>>.>>>.>>....]]].
..]]]]...<<<<<<<<...<...<<<<.<.....>.>>>>...>>>>>>
>>>.........<<<.<<...<..<<<<<.......<<<.<<.<<<<<.<
<..<<<...<............>..>>>...>>.>>>>>>>>>>......
.....................<.<<...<<<<<<<.........>>>>>>
>.........>>.>................>>>>>..>......<<..}}
>>.....>>.....>>>.}}}.<<<......<<<<....>>>>....>>>
..}}}}..<<<<<.<<<<<<<..<<.<<<<<<.....<<<<<<.......
<<........>>.......<..<<.<<......<.<<<........<<.<
<<........>>>.>>......>>>.>.<.<<.<<<..<<.<<<<<<...
.<<<.<<<<......>>...<<<......>>>...>>.>>>....<<<<<
.<<<<.....<<<<<.<<..<.....<<<<<<<..<<<<...>>>>..>>
>>>>>......>....>>.>>>>>.....>>>>...<<.<.<<.....>>
>.>>.......>>>>>....>>>.>>>.....>>>>>>>>......>.>.
>>.>...>.>>>>>....................................
....<<<<<<<........>>>>>>>........................
....<....<<<.<<..........>>.>>>.....>.....>>>>>>..
..<<<<<<<.........>>>>>>>......>>...>>>>>>>>>>.>>.
...<..<<.<.<<<<<<<<..<<.<<<.<.<<<<..<<<<<.<...<.<<
<<<<<<...>>>>>>>>.>...>.>>>>>..>>>>.>.>>>.>>..>>>>
>>>>..>.>>...>.....<<<<<<<<<....>>>>>>>>>.........
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB7ase Structural Differences in Translation Initiation between Pathogenic Trypanosomatids and Their Mammalian Hosts.
Resolution3.33 Å
Binding residue
(original residue number in PDB)
Q43 N44 V79 A80 K84 C100 S102 K103 R105
Binding residue
(residue number reindexed from 1)
Q3 N4 V39 A40 K44 C60 S62 K63 R65
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003735 structural constituent of ribosome
Cellular Component
GO:0005840 ribosome
GO:0022627 cytosolic small ribosomal subunit
GO:1990904 ribonucleoprotein complex

View graph for
Molecular Function

View graph for
Cellular Component
External links
PDB RCSB:7ase, PDBe:7ase, PDBj:7ase
PDBsum7ase
PubMed33357443
UniProtQ4DTX6

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